foursquare

Oxford Advanced Learner

Twitter is without a doubt the best way to share and discover what is happening right now.

Plan a trip with great travel recommendations from friends and people who travel like you. Collect and share where you

Facebook 是一個聯繫朋友、工作伙伴、同學或其它社交圈之間的社交工具。你可以利用 Facebook 與朋友保持密切聯絡，無限量地上傳相片，分享轉貼連結及影片，還可以幫助你增進你對朋友的了解。

Vimeo is a respectful community of creative people who are passionate about sharing the videos they make. We provide the best tools and highest qualit...

Flickr is almost certainly the best online photo management and sharing application in the world. Show off your favorite photos and videos to the worl...

The largest and most trusted free online thesaurus. Quickly find accurate and up-to-date synonyms, antonyms, and related words at Thesaurus.com. Synon...